18982450. SECONDARY BATTERY AND ELECTRICAL DEVICE (CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED)
SECONDARY BATTERY AND ELECTRICAL DEVICE
Organization Name
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Inventor(s)
Yikuang Jin of Ningde, Fujian CN
Shaojun Niu of Ningde, Fujian CN
Haizu Jin of Ningde, Fujian CN
SECONDARY BATTERY AND ELECTRICAL DEVICE
This abstract first appeared for US patent application 18982450 titled 'SECONDARY BATTERY AND ELECTRICAL DEVICE
Original Abstract Submitted
A secondary battery includes an electrode assembly including a main body and a tab extending from the main body, wherein the main body includes a negative electrode plate including a negative current collector, and a negative electrode film layer arranged on at least one surface of the negative current collector, wherein the negative electrode film layer includes a first region and a second region arranged to at least one side of the first region, in the direction that the tab extends, wherein the first region includes a first negative electrode active material and the second region includes a second negative electrode active material, and wherein the first negative electrode active material has a powder OI value denoted as OI, and the second negative electrode active material has a powder OI value denoted as OI, wherein the negative electrode film layer satisfies OI<OI.